Car-underframe.



Patented Apr. 2, 1912,. l 2 SHEETS-SHEET 1.

CODO-0000i .000606000 GAB UNDEBPBAME.

"J. 11, vvmsBRoD.

APPLICATION FILED AUG. 28, 1908.

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`Patented Apr.2, 1912.

2 SHEETS-SHEET 2.

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I gvimn KIN y UNITED siATss rATENT .IAooB H. wEIsBRoD, or sr. LoUIs,MIssoURI, AssIsnoB `fro AMERICAN oAafANn FOUNDRY COMPANY, or.sr.lLoUIs,MIssoUnI, A oonronATIoN or NEW JERSEX.

CARP'UNDERFRAME.

i as'will enable others skilled in the arty to which it appertains tomake and to use the same, reference being' had to the accom vanyingdrawings, which illustrate the .pre erred form of the invention, though.it isto be understood that' the invention is not limited to theexactdetails ofconstriiction shown and described, as itis obvious thatvarious modifications thereof will occur to persons skilled in the art.

In said drawings: Figure 1 is a plan view y The object of theinvention-is to provide asimple, light and strong metal underframe forkrailway ears with a single plate girder center sill in which thecompression member isdivided at the rear of thev bolsters and passesbeyond saidbolsters to form draft members either extending to endsillswith-l out interruption or serving as supporting means forseparatedraft beams or sills `rwhich may be connected therewith as iscommonly done withy the ends of separated center sills which extendbeyond thebolsters. In this car the greater part or all the load iscarried by the single plate girder center sill, the web and tensionmember of which terminate Vpreferably between the holsters and thecompression 'member extends fromv end sill to end sillto serve bei tweenthe holsters as parts of the center sill land beyond the holsters asdraft :sills whereat the said compression 'members'are sep- Specicationof Letters Patent. A Application filed Augiust 28, 1908.v Serial lNo.450,679.

'Patented Apr. 2',

` arated c suiiiciently `to .receive between" ',tliemV the usual draftrigging, notshown'. V*For the pur ose of securing the rearl endvortion's o these draft Asill extensions 'bo ster filler castingsareprovidedwhich haverela tively parallel sidefaces and curved rearportions and the-'draft sills are riveted; to

said filler castings and to the upstanding inner vianges of the bolsterdiaphraglnswhile a continuous sill cover plate connects center sill.Continuous yZ-sha'ped sidesill,

members are supported by the' ends'ofrzthe bolsters and transverse'members andfon these sills are carried the usual side nailing strips,shown in dotted linesin Fig.'Y 3,

though it is evident thatother forms of side sills or their vequivalentmay vbe substituted if desired, this invention relatingprincipally tothe monosill funderframe; andi its associated parts as used in oneconstruction.

Referring to the parts, Av is the "single center sill of plate girderformr extending relatively `from `near the bolsterA B shown to the samerelative distance 'from its companion bolster at the otherend fpor-Vtion of the 'cal'. Said holsters comprise pressed. diaphragms 2, top andbottqmeoyer plates 3 4, center-castings 5, and` flanged4 plate 6, bymeans of which the ,'Zfsliiiped side sills 7 are connected therewith. f

The center casting differs invformfrom that usually' employed in thatlthe reanportion thereof 8 is curved to better adapt it for use inconnection \vith..thlelpeculiarV `bers which extend from the endsillsklfO' in parallel lines past the bolsterdia'phragms and thereconverge as shown ,in Figflto .form parts of the compression member 1.1'

tion of the web platerare securedapair of angles 13 which are.substantially coextendiverging from the ends of said web plate 65 l sivewith said web plate as best shown'in Fig. 2.

Resting on the upper flanges of the niembers 11 is a longitudinallyextending -sill cover plate 14 which may he duplicated, if desired, andsaid sill cover plate extends to and is secured to the bolster coverplates 3 by suitable rivets.

Extending transversely of the car underframe are truss memberscomprising the upper channels 15 which extend over the center sills andto the side sills, and the lower channels 16 which extend below and aresecured to the-bottom flanges of said Z-shaped side sills and extendthrough the web plate 12 of the center sill, as4 best shown in Figs. 2and 4. i a i Connecting the top and bottom channel members 16 are webs17 of channel form which are securelyV riveted in position. Above thetension'angles 13 of the center sills are brackets 18 which are providedwith laterally extending flanges 19 through which rivets extend tosecure said flanges to the webs of the compression members, the web 12and the upper legs of the tension angles 13, said brackets 18 beingcutaway as shown at 2,0, to accommodate the lower flanges of thecompression members 11.

It will be observed that the bottom members 1G of the transverselyextending truss, just described, extending through the web plate 12causes said web plate and the compression members 11` to serve as strutsfor the transversely extending truss.

Between the transversely extending trusses and the holsters are crossbearers 22 of channel form in cross section which are secured bysuitable flanged plates 23 to the side sills and to the compressionmembers of the ,center sills. Extending from the holsters are diagonalbraces 24- which are preferably angle shaped in cross section, and saiddiagonal braces have their vertical legs cut away so that the horizontallegs thereof may pass over the top cover plates 3 of the holsters and besecured to said .top cover plates and to the outstanding horizontalflanges of the holster diaphragms, as best shown in Fig. 1. The oppositeor outer endsv of said diagonal braces also have their vertical legs cutaway and the horizontal flanges thereof are se-` cured to the plates25which are riveted to the upper flanges of the ,channel shaped end sillsandto the Z-shaped side sills.

lfVhat is claimed as new is: 1. In a .car underframe, the combinationcomprising holsters each with an opening relatively at the middlethereof, a. filler in each of said bolster openings, a single built- -upcenter girder with a vertical web' plate between saidv holsters,compression members forming parts of said center girder and andextending through said holster' lat each side of said bolster filler,and a cover plate extending between and connecting said hol- Y sters.

2.A In a car underframe, the combination with side sills, holsters, a,built-up plate girder center sill with tension members terminatingbetween said holsters and compression members diverging from the ends ofsaid tension members and extending 'heyond said'bolsters, a sill coverplate connected with said holsters, and filling members withinrelatively central openings of said holsters and separating theextensions of said compression members.

3. In a car underframe, the combination with side sills, holsters, aplate girder center sill with tension members terminating between saidholsters and compression members extending beyond said holsters, and atransverse truss one member of which extends below said side sills andthrough the web plate of said center sill.

4. In a car underframe, the combination with side sills, holsters, aplate. girder center sill with tension members terminating between saidholsters and compression members extending beyond said holsters, and across bearer having olie member extending to said side sills and anothermember pass.

ing through the sill web plate and below said side sills.

In a railway car, holsters, end sills and channel shaped draft sillsextending from said end sills through said holsters between whichholsters said draft sills converge and are connected together, and meansclamped between the connected portions of said drafty -sills connectingAall of said draft sills together.

(5. In a railway car, the combination comprising holsters, end sills andchannel shaped draft sills between each holster and end sill, said draftsills converging between said holsters and being connected together, andmeans clamped between the connected portions'of said draft sillsconnecting all of said draft sills together.

7. A car provided with a single plate girder center sill extending fromend sill to end sill and provided with an intermediate weh and tensionmember said web and tension members terminating between the holsters,said sill comprising separately formed compression members divergingfrom the ends of said tension member.

8. A car provided, with a flanged web cenvter sill, a pair of channelshaped draft sills secured to said center sill web between the holstersand senii-circular holster `fillers fitted between curved portions ofsaid draft sills.

9. A car underframe comprising a holioo ster and a single plate girdercenter sill, coincident with the points of divergence of said centersill comprising a compression said center sill, anda Cover plate of saidmember` extending beyond said bolster and center sill extending beyondthe ends of said a :Web plate and tension member terminat- Web plate andbeing fixed to said bolster's.

5 ing between said bolsters, and a cross bearer vIn Witness whereof Ihave set my hand in 15 extending through 4sid Web plate. the presence oftwo Witnesses.

10. In 'a car underframe, the combna- JACOB H. WESBROD. tion withbolsters and aL center sill formed Witnesses: 4 'with diverging end`portions-of a web plate FREDERICK H.` Gris,

10 for said center sill terminating substantiell)7- n .JOHN D. SEILER. l

